Show:
Basic Electrical
Batteries
DVOM
Circuits
Safety
100

This is the FORCE that causes current to flow 

Voltage 

100
How many cells are in a 12 Volt battery? 

6 cells at 2.1 volts each 

100

Ammeters are always connected _____________. 

In series 

100

What type of circuit is categorized as having only one path for current to flow? 

Series Circuit 

100

How should you NEVER connect an ammeter 

In parallel with the loads in a circuit 

200

This is a term used to describe the flow of electrons in a circuit 

Current 

Amperage 

200

Which battery post is larger?

Positive post is larger by 1/16 

200

With out using the word voltage. 

What do voltmeters measure? 

Difference in electrical potential from one point to another 

200

What type of circuit is categorized as having more than one path, and each load has its own connection to ground and to power. 

Parallel circuit 

200

When soldering electrical connections use ___________ solder 

60/ 40 Rosin Core 

300

What is the unit of measurement used in electrical resistance? 

Ohms 

300

Electrolyte is a mixture of what?

Water and Sulphuric acid. 

300

Before using an ohmmeter to measure resistance in an electrical component you should ___________. 

Isolate the component and remove from power source 

300

How is total resistance calculated in a series circuit? 

Adding all the resistors together 

300

What should never be worn with working on electrical systems. 

Jewelry 

400

V = A x R  is a variation on what formula? 

Ohm's Law 

400

What is the specific gravity of a fully charged battery? 

1.260-1.280

400

How could you describe the voltage measurement from battery positive post to the positive terminal of windshield wiper motor, while the motor is running. 

Insulated side voltage drop 

400

What are the 4 faults found in electrical circuits? 

-opens 

- shorts 

- grounds 

- high resistance 

400

What is the maximum terminal voltage with safely charging lead-acid batteries 

15.5 Volts 

500

What 4 things affect resistance of a conductor? 

-length 

-temperature 

-size 

-material 

500

What is the voltage of one fully charged lead-acid battery cell? 

2.1 volts 

500

When setting a digital multi-meter for a hall-effect amperage clamp. Set the meter scale to measure __________.  

Millivolts 

500
Name the electrical component that uses a small amount of amperage to turn on a pathway to larger current. 

Relay 

Mag switch 

Transistor 

500

When working on vehicle electrical systems always disconnect the  ________ cable first. 

Ground Cable 

Negative Cable